Now launching — be among the first

Know before your users do.

Perimon monitors your site 24/7 and alerts you instantly when something breaks — downtime, slow response, or expiring SSL.

Start for freeWatch the demo

No credit card · Up and running in 60 seconds · Cancel anytime

app.perimon.io

Websites

4 sites · updated 12s ago

2

Operational

1

Degraded

1

Offline

98.6%

Avg uptime

SiteUptimeResp.SSLChecks
mon-ecommerce.fr99.97%142ms87d1 442
api.mon-saas.io99.91%89ms241d1 440
blog.studio.fr98.4%2340ms14d1 389
client-abc.com96.1%—63d1 298

24/7

Continuous monitoring

< 5 min

Alert delay (Free)

30 sec

Minimum interval (Enterprise)

0

Agent to install on your server

Real incidents

These outages could have been prevented.

Solopreneur — E-commerceIncident · Outage
sitemy-store.com
duration3h 14min
impactActive ad campaign. ~320 visits lost.
Spotted by a customer. Not the owner.
Indie Hacker — SaaSIncident · Slowdown
sitemy-app.io
duration2 days
impactAPI response time: 4,200ms
No alerts. Unexplained churn spike.
Agency — VIP clientIncident · SSL expired
sitepremium-client.com
duration6h
impactExpired certificate. Browser blocking.
Client called on a Saturday night.
Prevent this — start for free →

Setup

Up and running in under 60 seconds.

01~15 seconds

Create your account

Email and password. No credit card. Active immediately.

02~10 seconds

Add your URL

Paste the address. Perimon auto-detects HTTPS and SSL — zero config needed.

03Instant

Monitoring starts

First check running. You'll be alerted if something goes wrong — and only then.

Features

Everything Perimon monitors for you.

HTTP · Uptime
→

Uptime

Detect outages before your users do. Full incident lifecycle with false-positive prevention.

Last 90 checks99.97% operational
OperationalDegradedUnavailable
Performance
→

Response time

Undetected slowness kills conversions. Configurable thresholds, real-time charts.

SSL

Expiry, chain, cipher. Alert 30 days before — never caught off guard.

perimon.io
87d
api.*
14d

Status pages

Public page in 1 click. Custom domain. Show transparency to your clients.

status.mysite.comOperational

Cost of an outage

How much does every hour of downtime cost you?

Enter your revenue and visualize the losses depending on how long your incident lasts.

1,000€
1 hour of downtime1.39 €
Half a day of downtime16.67 €
1 full day of downtime33.33 €
1 week of downtime233.33 €

Cumulative loss by downtime duration

Monthly revenue — 1,000 €

1 hour of downtime

Half a day of downtime

1 full day of downtime

1 week of downtime

1.39 €

16.67 €

33.33 €

233.33 €

Every hour without monitoring is an hour of potential downtime going undetected.

Start for free

Pricing

Simple and transparent.

No commitment. Cancel anytime.

Free
0 €/ mois

Perfect for testing and monitoring up to 3 sites

Start for free
  • Websites3
  • Collaborators1
  • Check interval5 min
  • Status pages1
  • Status Pages✓
  • Custom Domain—
  • Collaborators—
  • API Access—
Coming soon
Pro
—

For teams managing multiple sites and clients

  • Websites10
  • Collaborators3
  • Check interval1 min
  • Status pages3
  • Status Pages✓
  • Custom Domain✓
  • Collaborators✓
  • API Access—
Coming soon
Enterprise
—

Custom solutions for large organizations

  • WebsitesIllimité
  • CollaboratorsIllimité
  • Check interval30 sec
  • Status pagesIllimité
  • Status Pages✓
  • Custom Domain✓
  • Collaborators✓
  • API Access✓

FAQ

No agent · No config · Just a URL

Your site deserves to be monitored.

3 sites free. No credit card. Up and running in 60 seconds.

Start for free